System and method for distributing information throughout an aircraft

• US 6,014,381 A
• Filed: 09/13/1996
• Issued: 01/11/2000
• Est. Priority Date: 09/13/1996
• Status: Expired due to Term

• Current Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Sony Transcom Incorporated (Rockwell International Corporation), Sony Corporation (Sony Group Corp.)
• Inventors: Fukui, Toshiharu, Troxel, Robert V., Henrikson, Gregory K.
• Primary Examiner(s): NGUYEN, CHAU T
• Application Number:
  US08/713,536
• Time in Patent Office: 1,215 Days
• Field of Search: 370/465, 370/466, 370/467, 370/395, 370/396, 370/397, 370/399, 370/420, 370/480, 370/485, 370/486, 370/487, 370/401, 370/352, 370/469, 455/4.1, 455/4.2, 455/5.1, 348/6-8
• US Class Current: 370/395.52
• CPC Class Codes: H04L 12/40058 Isochronous transmission
• CPC Class Codes: H04L 12/40091 Bus bridging LAN interconnection over a bridge based backbone H04L12/462; single bridge functionality H04L12/462
• CPC Class Codes: H04L 12/40117 Interconnection of audio or video/imaging devices home automation networks H04L12/2803; bitstream network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04N 7/106 for domestic distribution
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

A passenger entertainment system of an aircraft utilized to distribute audio and/or video in a digital format throughout a vehicle. The passenger entertainment system includes an Asynchronous Transfer Mode ("ATM") network interconnected to a high speed, serial distribution network propagating information in a predetermined format. Collectively, these digital networks support the broadcast of audio and/or video in real-time as well as actual "video on demand" services.

Claims

1. A digital passenger entertainment system implemented within a vehicle having a plurality of end nodes, comprising:

a first digital network to receive information in an analog format and to transfer the information in a first digital format;

a second digital network to transfer the information in a second digital format supporting asynchronous and isochronous data transfers to each of the plurality of end nodes, the second digital network includes a high speed, serial distribution network that transfers information according to an IEEE 1394 standard; and

a bridge circuit coupled to the first digital network and the second digital network, the bridge circuit to receive the information in the first digital format, to convert the information from the first digital format into the second digital format, and to output the information in the second digital format to the second digital network.

2. The digital passenger entertainment system according to claim 1, wherein said first digital network is an Asynchronous Transfer Mode (ATM) network which transfers the information in the first digital format through ATM cells.

3. The digital passenger entertainment system according to claim 2, wherein the bridge circuit includes a plurality of zone bridge units.

4. The digital passenger entertainment system according to claim 3, wherein each of the plurality of zone bridge units includes a processor and internal memory.

5. The digital passenger entertainment system according to claim 3, wherein the ATM network includes

an input device which captures the analog information;

a headend electronic device which digitizes the analog information into the information in the first digital format; and

an ATM switch circuit coupled to the headend electronic device, the ATM switch circuit replicates the information in the first digital format for concurrent transmission to the plurality of zone bridge units.

6. The digital passenger entertainment system according to claim 5, wherein the input device includes one of a video reproduce unit, a video camera, and an audio reproduce unit.

7. A digital passenger entertainment system implemented within a vehicle having a plurality of end nodes, comprising:

a digital Asynchronous Transfer Mode (ATM) network to transmit and to receive at least one ATM cell; and

a digital serial distribution network to transfer digital information in accordance with IEEE 1394 standards to each of the plurality of end nodes; and

a bridge circuit coupled to said ATM network and said serial distribution network, said bridge circuit to receive the at least one ATM cell, to convert the at least one ATM cell into at least one datagram in compliance with IEEE 1394 standards, and to output the at least one datagrams to the serial distribution network.

8. The digital passenger entertainment system according to claim 7 further comprising a plurality of zone bridge units, said plurality of zone bridge units interconnect said digital ATM network and said digital serial distribution network.

9. The digital passenger entertainment system according to claim 8, wherein each of the plurality of zone bridge units includes a processor and internal memory.

10. The digital passenger entertainment system according to claim 8, wherein said digital serial distribution network includes a high speed, serial distribution network that transfers information according to an IEEE 1394 standard.

11. The digital passenger entertainment system according to claim 10, wherein said digital serial distribution network further a plurality of seat electronics units, a first seat electronics unit of said plurality of seat electronics units controls a transfer of information received from a zone bridge unit of said plurality of zone bridge units.

12. The digital passenger entertainment system according to claim 7, wherein the ATM network includes

an input device to capture analog data;

a headend electronic device to digitize said analog data into digital data; and

an ATM switch unit coupled to said headend electronic device, the ATM switch unit replicates said digital data for concurrent transmission to said plurality of zone bridge units.

13. The digital passenger entertainment system according to claim 12, wherein the input device includes one of a video reproduce unit, a video camera, and an audio reproduce unit.

14. A digital passenger entertainment system implemented within a vehicle, comprising:

a digital Asynchronous Transfer Mode (ATM) network to deliver information in a first digital format;

a digital serial network to deliver information in a second digital format support asynchronous and isochronous data transfers, the digital serial network including a high speed, digital serial bus operating in accordance with an IEEE 1394 standard; and

a bridge circuit coupled to the ATM network and the digital serial network, the bridge circuit to convert the information between the first digital format into the second digital format in order to support a transfer of the information between the digital ATM network and the digital serial network.

15. A digital passenger entertainment system implemented within a vehicle having a plurality of end nodes, comprising:

a first digital network to receive information in an analog format and to transfer the information in a first digital format;

a second digital network to transfer the information in a second digital format supporting asynchronous and isochronous data transfers to each of the plurality of end nodes;

a bridge circuit coupled to the first digital network and the second digital network, the bridge circuit to receive the information in the first digital format, to convert the information from the first digital format into the second digital format, and to output the information in the second digital format to the second digital network; and

the second digital network including a plurality of seat electronics units, a first seat electronics unit of the plurality of seat electronics units controls transfer of the information in the second digital format received from a zone bridge unit in the bridge circuit.